The Mercer Island JV boys basketball team won the High School Under 1000 Championship in the 2012 23rd NW Sports AAU boys basketball tournament in Reno, Nevada over Memorial Day weekend.

The Islanders went 5-0 and started off by beating teams from Nevada and California to win their pool and advance to the championship bracket. The team then went on to beat the Bearcats from Northern California on Sunday morning. Sunday afternoon proved to be the closest game of the weekend against a tough team from North Valley, CA. The threes were dropping for the Islanders, which kept the score close the entire game. The game ended with a buzzer beating basket by Jack Counihan, giving them the one point margin victory.

The championship game was held at Reno High School on Monday against the Running Redwoods from the Santa Cruz area. Teddy Van der Velden led the team in scoring with 10 points. The Islanders had a healthy lead the entire game, winning the championship game 43-28.

The team was coached by Brock Maybee and consisted of five incoming juniors: Daniel Marinello, Matt Seifert, Daniel Sims, Teddy Van der Velden and Peter Welch; four incoming sophomores: Michael Bantle, Jack Counihan, Patrick Nielson and Nick Taylor; and three incoming freshman: Peter Ernst, Griffin Kane and Matt LeProwse.